Could you take your skills elsewhere? A new job might help, at least for a time. I am impressed with your ability to hang in a place with such negative co-workers (I know what that is like...and I leave)--- Have you talked with your partner about this? Maybe your working on the house, taking that break, would work for a bit. Do take a class. Diversion is good, something else to focus on...honestly, it sounds like, at this point, the job is costing you more than you can get from it. Then again, I am not necessarily a good judge of these things.